Reaction catalyzed by chlorophyllide a 31-hydratase (4.2.1.165), 3-vinyl bacteriochlorophyllide d 31-hydratase (4.2.1.169)

		+		H2O	=
	3-vinyl-8-ethyl-12-methyl-bacteriochlorophyllide d	+		H2O	=		(31R)-(1-hydroxyethyl)-8-ethyl-12-methyl-bacteriochlorophyllide d