3-beta-hydroxy-5-alpha-steroid dehydrogenase (NADP+) activity
Catalysis of the reaction: -3beta-hydroxy-5alpha-pregnane-20-one + NADP+ = 5-alpha-pregnane-3,20-dione + H+ + NADPH.
GO:0033764
steroid dehydrogenase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
is_a
3beta-hydroxy-5alpha-steroid:NADP+ 3-oxidoreductase activity
related