Reaction catalyzed by 3alpha-hydroxysteroid 3-dehydrogenase (Re-specific) (1.1.1.213)

		+		NADH	=			+		NAD+
	pregnane-11beta,17alpha,21-triol-3,20-dione	+		NADH	=		pregnane-3alpha,11beta,17alpha,21-tetrol-20-one	+		NAD+