Predicted to enable chemorepellent activity and semaphorin receptor binding activity. Predicted to be involved in several processes, including generation of neurons; neural crest cell migration; and semaphorin-plexin signaling pathway. Predicted to act upstream of or within cell differentiation and nervous system development. Located in plasma membrane and synapse. Is expressed in several structures, including back musculature; central nervous system; peripheral nervous system ganglion; and retina. Orthologous to human SEMA4B (semaphorin 4B). [provided by Alliance of Genome Resources, Apr 2022]