Predicted to enable mannosyl-oligosaccharide 1,2-alpha-mannosidase activity. Predicted to be involved in N-glycan processing; mannose trimming involved in glycoprotein ERAD pathway; and protein targeting to ER. Predicted to be located in several cellular components, including Golgi apparatus; cytosol; and endoplasmic reticulum-Golgi intermediate compartment. Predicted to be active in Golgi membrane and endoplasmic reticulum. Orthologous to human MAN1A1 (mannosidase alpha class 1A member 1). [provided by Alliance of Genome Resources, Apr 2022]