Catalysis of the reaction: N(4)-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)--beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glucosaminyl}-L-asparagine + GDP-L-fucose = N(4)-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)--beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)--N-acetyl-beta-D-glucosaminyl}-L-asparagine + GDP + H+.
GDP-fucose:beta-N-acetylglucosamine (Fuc to (Fucalpha1->6GlcNAc)-Asn-peptide) alpha1->3-fucosyltransferase activity