Predicted to enable identical protein binding activity. Acts upstream of or within motor neuron axon guidance. Located in axon; external side of plasma membrane; and neuronal cell body. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; sensory organ; and vibrissa. Orthologous to human ALCAM (activated leukocyte cell adhesion molecule). [provided by Alliance of Genome Resources, Apr 2022]