The only functions that show a gender bias are Thinking and Feeling. I've heard that Jung noted a tendency for women to prefer Fe and Ne, and for men to prefer Te and Se. But the Se/Ne one is often disputed.
Ni is very rare in both genders, but it produces a similar character in either one. The term "he" is only used for grammatical reasons. "They" would not technically be correct, because a gendered pronoun is, historically, more grammatically correct even if referring to hypothetical people of unknown gender.