Predicted to enable alkaline phosphatase activity. Predicted to be located in cell surface. Is expressed in adult head; embryonic midgut chamber; and embryonic/larval midgut. Human ortholog(s) of this gene implicated in adult hypophosphatasia; childhood hypophosphatasia; hypophosphatasia; infantile hypophosphatasia; and inflammatory bowel disease. Orthologous to several human genes including ALPG (alkaline phosphatase, germ cell); ALPI (alkaline phosphatase, intestinal); and ALPP (alkaline phosphatase, placental).