Enables N4-(beta-N-acetylglucosaminyl)-L-asparaginase activity and protein self-association. Predicted to be involved in protein deglycosylation. Located in lysosome. Human ortholog(s) of this gene implicated in aspartylglucosaminuria and lysosomal storage disease. Orthologous to human AGA (aspartylglucosaminidase). [provided by Alliance of Genome Resources, Apr 2022]