Predicted to enable sialate O-acetylesterase activity. Predicted to be involved in carbohydrate metabolic process and regulation of immune system process. Located in lysosome. Is expressed in several structures, including abdominal fat pad; central nervous system; dorsal aorta; genitourinary system; and yolk sac. Human ortholog(s) of this gene implicated in autoimmune disease. Orthologous to human SIAE (sialic acid acetylesterase). [provided by Alliance of Genome Resources, Apr 2022]