May act as a pilot protein, directing MinCD to the polar septation sites or by inhibiting MinCD at the midcell site of division. Required for polar localization of the chromosome during sporulation. Oligomers. Interacts with FtsZ, MinD, MinJ and Spo0J. The association with Spo0J is transient and occurs at a specific point during development. Localized at the cell division site and found exclusively at the cell pole during sporulation. Constitutively expressed. Misplacement of the septum during cell division, resulting in the formation of small, circular, anucleate minicells. Overexpression of DivIVA is lethal. Belongs to the DivIVA family.