Enables acid phosphatase activity. Predicted to be involved in protein dephosphorylation. Located in cytosol and sarcolemma. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Human ortholog(s) of this gene implicated in several diseases, including attention deficit hyperactivity disorder; conduct disorder; diabetes mellitus (multiple); diabetic retinopathy; and obesity. Orthologous to human ACP1 (acid phosphatase 1). [provided by Alliance of Genome Resources, Apr 2022]