Predicted to enable ankyrin binding activity and protein binding activity involved in heterotypic cell-cell adhesion. Predicted to be involved in several processes, including angiogenesis; homophilic cell adhesion via plasma membrane adhesion molecules; and neuron development. Predicted to act upstream of or within several processes, including neuronal action potential propagation; regulation of neuron projection development; and retinal ganglion cell axon guidance. Located in axon initial segment and node of Ranvier. Orthologous to human NRCAM (neuronal cell adhesion molecule). [provided by Alliance of Genome Resources, Apr 2022]