Predicted to enable alpha-2A adrenergic receptor binding activity; alpha-2B adrenergic receptor binding activity; and alpha-2C adrenergic receptor binding activity. Predicted to be involved in axonogenesis and central nervous system development. Predicted to be located in membrane. Predicted to be active in Golgi apparatus and plasma membrane. Is expressed in nervous system. Orthologous to human APLP1 (amyloid beta precursor like protein 1).