Predicted to enable semaphorin receptor activity. Predicted to be involved in several processes, including embryonic heart tube development; nervous system development; and regulation of GTPase activity. Predicted to act upstream of or within several processes, including nervous system development; regulation of axon extension involved in axon guidance; and regulation of negative chemotaxis. Predicted to be part of semaphorin receptor complex. Predicted to be integral component of plasma membrane. Orthologous to human PLXNA4 (plexin A4). [provided by Alliance of Genome Resources, Apr 2022]