Reaction catalyzed by 7beta-hydroxysteroid dehydrogenase (NADP+) (1.1.1.201)

		+		NADP+	=			+		NADPH
	3alpha,7beta-dihydroxy-5beta-cholanoyl glycine	+		NADP+	=		3alpha-hydroxy-7-keto-5beta-cholanoyl glycine	+		NADPH