Predicted to enable cell-cell adhesion mediator activity. Predicted to be involved in axon guidance; dendrite self-avoidance; and homophilic cell adhesion via plasma membrane adhesion molecules. Predicted to be active in several cellular components, including Z disc; axon; and focal adhesion. Human ortholog(s) of this gene implicated in dilated cardiomyopathy 1CC and hypertrophic cardiomyopathy 20. Orthologous to human NEXN (nexilin F-actin binding protein).