Reaction catalyzed by 4-galactosyl-N-acetylglucosaminide 3-alpha-L-fucosyltransferase (2.4.1.152)

		+			=			+
	GDP-fucose	+		(-3GalNAcbeta1-4GlcNAcbeta1-)n	=		GDP	+		(-3GalNAcbeta1-4(Fucalpha1-3)GlcNAcbeta1-)n