Glycoprotein C and glycoprotein N interact with each other and are present at the surface of the virion. They are able to attach the virion to host cell receptors. This attachment induces virion internalization predominantly through clathrin-dependent endocytosis. Also promotes fusion of viral membrane with host endosomal membrane after endocytosis of the virion (By similarity). Glycoprotein C and Glycoprotein N interact with each other. Interaction between Glycoprotein C and Glycoprotein N is essential for proper targeting of Glycoprotein C to the Golgi complex, where virion budding occurs. Specific enzymatic cleavages in vivo yield mature proteins including glycoprotein C and glycoprotein N. Belongs to the nairovirus envelope glycoprotein family.