Reaction catalyzed by N-acetyllactosaminide 3-alpha-galactosyltransferase (2.4.1.87)

		+			=			+
	UDP-alpha-D-galactose	+		Glcalpha-diphospho-O(CH2)10CH3	=		UDP	+		Galalpha(1->3)Glcalpha-diphospho-O(CH2)10CH3