This protein is a cell adhesion molecule involved in neuron- neuron adhesion, neurite fasciculation, outgrowth of neurites, etc. (Microbial infection) Acts as a receptor for rabies virus. . (Microbial infection) Acts as a receptor for Zika virus. . This is the function of Ensembl gene identifier ENSG00000149294 (NCAM1, neural cell adhesion molecule 1).