May act as a minor matrix protein that plays a role in assembly of viral nucleocapsid and virion budding (PubMed:16227263). Unlike Ebola VP24, mVP24 has no measurable impact of host dendritic cell function (PubMed:26962215). Monomer or homotetramer (Potential). Interacts with nucleoprotein. 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. Belongs to the filoviridae membrane-associated protein VP24 family.