Extraverted, intuitive, feeling, judging. It's a relatively uncommon type and an unusually visible one, because most of what it does happens in front of other people.
The Four Letters
Extraverted means you're energized by people and you think in company. Your ideas about a situation get sharper when you're in it rather than considering it afterwards.
Intuitive means you read patterns and futures. Applied to people, that becomes something specific: you can see where somebody is heading, and often what's actually going on with them before they've said it.
Feeling means you decide by values and by effect on people. Combined with intuition, that's the engine of this type. You perceive accurately and you care about the outcome, which is a rarer pairing than it sounds.
Judging means you organize. You won't leave the insight as an insight; you'll turn it into a plan, a conversation, an introduction, a role for somebody. That last step is what separates this type from the ones that also see clearly and then do nothing with it.
Together: somebody who sees people clearly, believes in what they could become, and arranges things to help get them there.
"Protagonist," and That Extra Letter
Protagonist is 16Personalities' name for this type. Teacher is another framework's, and that one is arguably closer, since the defining activity here is developing people rather than starring in anything.
The A or T at the end of a result comes from that same quiz's separate stress scale, not from the Myers-Briggs framework. Its origins are on the INFJ page.
Influence and Manipulation Run on the Same Equipment
This is the question this type actually has to answer, and most descriptions won't raise it.
You can read what somebody needs to hear and you can say it persuasively. That's how you encourage people into things they were afraid of. It is also, using exactly the same skill, how a person gets talked into something that suits you.
The difference isn't in the technique, because the technique is identical. It's in whose interest is being served, and you are the only one positioned to know.
"Do nothing out of selfish ambition or vain conceit. Rather, in humility value others above yourselves, not looking to your own interests but each of you to the interests of the others" (Philippians 2:3-4).
Paul isn't asking you to be less persuasive. He's setting the direction the persuading has to run in. A useful check before a conversation you know you can win: if this goes the way I'm about to make it go, who is better off?
What the Profiles Undersell
Two things.
The first is how much accurate perception is involved. This gets written up as warmth, which makes it sound like a temperament. It's closer to a form of sight, and it's why people tell you things in ten minutes that they haven't told anybody in a year.
The second is the exhaustion nobody sees. Carrying an accurate read on how twelve people are doing is work, and it doesn't switch off, and there's rarely anybody performing the same service for you.
What Happens When This Type Burns Out
Worth knowing in advance, because it doesn't look like burnout from outside.
The usual picture is somebody who stops functioning. Here it's more often somebody who keeps functioning perfectly while the perception goes flat. You'll still run the group, still say the right thing, and privately notice that you've stopped caring how any of them are doing. That's the warning sign, and it arrives long before you'd describe yourself as tired.
The fix is not a holiday, though take one. It's finding somebody who does for you what you do for everybody else, and that will almost certainly require asking, because the people around you have concluded from years of evidence that you don't need it.
The Limits of a Description
It can't tell you that other people's growth is your responsibility. You'll feel it as one. It isn't, and the difference between caring for somebody and carrying them is a line this type crosses without noticing.
And it can't tell you that you're only valuable when you're pouring out. That belief is common here, it's load-bearing, and it will not survive a season when you have nothing left to give.
Where Next
If the type is a guess, start with an actual assessment.
Its practical counterpart is connecting with Jesus as an ENFJ, which takes up Paul's instruction to Timothy to hand it on to reliable people who will hand it on again. Everything else for this type is collected here.
One last observation about where this type ends up. Whatever the official structure of a church is, ENFJs tend to become the informal centre of whatever group they're in, which means people bring you things that have no other route. That's a genuine responsibility and it comes with no title, no training and no oversight, so get yourself some of all three from somebody you trust.
Keep the perception, since it's most of what you bring. Then ask Philippians 2's question before the next conversation you already know how to win.