Reaction catalyzed by glycoprotein-fucosylgalactoside alpha-N-acetylgalactosaminyltransferase (2.4.1.40)

		+			=			+
	UDP-N-acetyl-alpha-D-galactosamine	+		2'-fucosyllactose	=		UDP	+		N-acetyl-alpha-D-galactosaminyl-(1,3)-[2'-fucosyllactose]