That sounds less like "code review", and more like "Mentoring". If you find a way to position it that way, you can bring that up with your boss(es) before your next performance review.

I've found mentoring other developers (whether it's explaining "Here's the facets of how we test All The Things", or "Here's how git branching works") to be profoundly fulfilling. I love explaining things. The best part is, fostering the idea of teaching each other means that others can mentor YOU as well on things, and you (and they) don't need to feel threatened.