Reaction catalyzed by (N-acetylneuraminyl)-galactosylglucosylceramide N-acetylgalactosaminyltransferase (2.4.1.92)

		+			=			+
	UDP-N-acetylgalactosamine	+		N-acetylglucosamine-beta-benzyl	=		N,N'-diacetyllactosediamine	+		benzol