Attaches the virus to host receptors, inducing clathrin-dependent endocytosis of the virion. In the endosome, the acidic pH induces conformational changes in the glycoprotein trimer, which trigger fusion between virus and endosomal membrane. Homotrimer. The cytoplasmic domain sorts the protein to neurons dentrites instead of axons. When expressed in ex vivo polarized cells like epithelial cells, it sorts the protein to the basolateral side. Glycosylated by host. Belongs to the vesiculovirus glycoprotein family.