Predicted to enable glucan 1,3-alpha-glucosidase activity. Predicted to be involved in N-glycan processing. Predicted to be located in intracellular membrane-bounded organelle. Predicted to be part of glucosidase II complex. Human ortholog(s) of this gene implicated in polycystic kidney disease; polycystic kidney disease 3; and polycystic liver disease. Orthologous to human GANAB (glucosidase II alpha subunit). [provided by Alliance of Genome Resources, Apr 2022]