Part of a cell division machinery (PubMed:18987308, PubMed:19008417). The CdvA, CdvB and CdvC proteins polymerize between segregating nucleoids and persist throughout cell division, forming a successively smaller structure during constriction (PubMed:18987308). Interacts with CdvB. Forms band-like structures between segregating nucleoids (PubMed:18987308). Localizes to the mid-cell in dividing cells (PubMed:19008417). Induced around the genome segregation and cell division stages (PubMed:18987308). Down-regulated after UV irradiation, indicating division inhibition in response to DNA damage (PubMed:18987308). Expression is highest in dividing cells (PubMed:19008417). The MIT domain is involved in interaction with CdvB. Belongs to the AAA ATPase family.