alpha-1,6-mannosyltransferase activity initiation-specific glycolipid 1,6-alpha-mannosyltransferase activity https://github.com/geneontology/go-ontology/issues/30326 molecular_function glycolipid 1,6-alpha-mannosyltransferase activity MetaCyc:2.4.1.232-RXN GO:0033164 initiation-specific alpha-1,6-mannosyltransferase activity GDP-mannose:oligosaccharide 6-alpha-D-mannosyltransferase activity GDP-mannose:glycolipid 1,6-alpha-D-mannosyltransferase activity Catalysis of the transfer of an alpha-D-mannosyl residue from GDP-mannose to Man(8)GlcNAc or Man(9)GlcNAc via an alpha-(1->6)-D-mannosyl-D-mannose linkage to form Man(9)GlcNAc or Man(10)GlcNAc, respectively. This is the first step specific to the biosynthesis of the outer chain of yeast mannoproteins. EC:2.4.1.232 glycolipid 6-alpha-mannosyltransferase activity GDP-mannose:oligosaccharide 1,6-alpha-D-mannosyltransferase activity