Predicted to enable semaphorin receptor activity. Predicted to be involved in several processes, including nervous system development; regulation of GTPase activity; and regulation of cell shape. Predicted to act upstream of or within generation of neurons; hippocampus development; and negative chemotaxis. Predicted to be part of semaphorin receptor complex. Predicted to be integral component of plasma membrane. Orthologous to human PLXNA3 (plexin A3). [provided by Alliance of Genome Resources, Apr 2022]