I should point out, my church doesn't practice any kind of distinction between people, not on gender, and indeed, not on vocation. You speak when the Spirit leads you, and that's a vocation. The rest of the time, you stay quiet, or ask questions, and that's a vocation too.
I am very unconvinced of the notion that a person who has a vocation always has it 24/7 for a lifetime. Sometimes, you're a minister for five minutes one afternoon and you never even find out it mattered.
I've told this story before, but:
One day, when I was depressed and just didn't see any point in anything, I was walking around the mall to get into the air conditioning while waiting for the bus.
This couple walked by me, and one of them came up to me, and pointed to the other. "You know something? I love that girl. I really love her."
I doubt anyone ever ordained that person, and indeed, any ceremony we performed would have been a mere afterthought, but in that place, at that time, that person brought comfort to the afflicted, and hope to the despairing.
He is not a tame lion.