Part of the ESX-5 specialized secretion system, which is responsible for the secretion of EsxN and a number of PE_PGRS and PPE proteins (PubMed:19602152, PubMed:22925462). EccA5 exhibits ATPase activity and may provide energy for the export of ESX-5 substrates (By similarity). Part of the ESX-5 / type VII secretion system (T7SS), which is composed of cytosolic and membrane components. Belongs to the CbxX/CfxQ family.