ID   1.1.1.277
DE   3beta-hydroxy-5beta-steroid dehydrogenase.
AN   3beta-hydroxysteroid 5beta-oxidoreductase.
AN   3beta-hydroxysteroid 5beta-progesterone oxidoreductase.
CA   3beta-hydroxy-5beta-pregnane-20-one + NADP(+) = 5beta-pregnan-3,20-dione
CA   + H(+) + NADPH.
//