Reaction catalyzed by UDP-N-acetylgalactosamine-undecaprenyl-phosphate N-acetylgalactosaminephosphotransferase (2.7.8.40)

		+			=			+
	UDP-N-acetyl-alpha-D-galactosamine	+		ditrans,octacis-undecaprenyl phosphate	=		UMP	+		N-acetyl-alpha-D-galactosaminyl-diphospho-ditrans,octacis-undecaprenol