Predicted to enable chemorepellent activity and semaphorin receptor binding activity. Involved in several processes, including T-helper 1 cell differentiation; negative regulation of angiogenesis; and positive regulation of synapse assembly. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Predicted to be active in extracellular space. Predicted to be integral component of plasma membrane. Is expressed in several structures, including blood vessel; central nervous system; primitive ventricle; retina; and ureteric trunk. Human ortholog(s) of this gene implicated in cone-rod dystrophy 10 and retinitis pigmentosa 35. Orthologous to human SEMA4A (semaphorin 4A). [provided by Alliance of Genome Resources, Apr 2022]