Enables alkaline phosphatase activity; magnesium ion binding activity; and zinc ion binding activity. Involved in phosphorus metabolic process and response to nutrient levels. Located in external side of plasma membrane. Human ortholog(s) of this gene implicated in inflammatory bowel disease. Orthologous to human ALPG (alkaline phosphatase, germ cell); ALPI (alkaline phosphatase, intestinal); and ALPP (alkaline phosphatase, placental). [provided by Alliance of Genome Resources, Apr 2022]