Interacts with host ephrinB2/EFNB2 or ephrin B3/EFNB3 to provide virion attachment to target cell. This attachment induces virion internalization predominantly through clathrin-mediated endocytosis. Interacts with host EFNB2 and host EFNB3. Belongs to the paramyxoviruses hemagglutinin-neuraminidase family. Henipavirus glycoproteins have no neuraminidase activity.