The function of NECTIN4 (nectin cell adhesion molecule 4, Ensembl gene identifier ENSG00000143217) is as follows. Seems to be involved in cell adhesion through trans- homophilic and -heterophilic interactions, the latter including specifically interactions with NECTIN1. Does not act as receptor for alpha-herpesvirus entry into cells. (Microbial infection) Acts as a receptor for measles virus. .