Enables alpha-1,6-mannosylglycoprotein 2-beta-N-acetylglucosaminyltransferase activity and carbohydrate binding activity. Involved in protein N-linked glycosylation. Predicted to be located in Golgi apparatus and cytoplasmic side of rough endoplasmic reticulum membrane. Predicted to be part of large ribosomal subunit. Predicted to be active in Golgi membrane. Human ortholog(s) of this gene implicated in congenital disorder of glycosylation type IIa. Orthologous to human MGAT2 (alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase). [provided by Alliance of Genome Resources, Apr 2022]