Predicted to enable alpha-1,6-mannosyltransferase activity. Predicted to be involved in protein N-linked glycosylation. Predicted to act upstream of or within protein glycosylation. Predicted to be located in endoplasmic reticulum and membrane. Predicted to be active in endoplasmic reticulum membrane. Human ortholog(s) of this gene implicated in congenital disorder of glycosylation Ig. Orthologous to human ALG12 (ALG12 alpha-1,6-mannosyltransferase).