Enables identical protein binding activity and semaphorin receptor activity. Involved in regulation of cell migration and semaphorin-plexin signaling pathway. Acts upstream of or within several processes, including cerebellar granule cell precursor tangential migration; chordate embryonic development; and limb bud formation. Is integral component of plasma membrane. Is expressed in several structures, including genitourinary system; heart; lung; nervous system; and sensory organ. Orthologous to human PLXNA2 (plexin A2). [provided by Alliance of Genome Resources, Apr 2022]