Predicted to be involved in negative regulation of neuron differentiation and neuron projection development. Predicted to act upstream of or within cell adhesion. Predicted to be located in extracellular region and plasma membrane. Predicted to be anchored component of membrane. Predicted to be active in neuron projection. Is expressed in central nervous system; dorsal root ganglion; and retina. Orthologous to human CNTN4 (contactin 4). [provided by Alliance of Genome Resources, Apr 2022]