I'll bet this has never been asked here before!

I'm installing a bathroom in my basement. The effluent plumbing of
course has to be vented to the outside. The current venting is way on
the other end of the basement. Instead of tapping in there, would it
be okay (code?) to simply run a vent pipe to my constantly running
radon exhaust pipe which is just a few feet away? After all, it vents
on the roof just like the plumbing vent.