May act as a minor matrix protein that plays a role in assembly of viral nucleocapsid and virion budding. Unlike Ebola VP24, mVP24 has no measurable impact of host dendritic cell function. Monomer or homotetramer (Potential). Interacts with the nucleoprotein (By similarity). In virion, localizes on the intravirional side of the membrane. In the host cell, it is found associated with virus-induced membrane proliferation foci and to the plasma membrane where budding takes place (By similarity). Belongs to the filoviridae membrane-associated protein VP24 family.