May serve as a molecular chaperone assisting in the proper folding of secreted and/or membrane proteins. Plays a role in non-neural cells nuclear envelope and endoplasmic reticulum integrity. May have a redundant function with TOR1A in non-neural tissues. ATP + H2O = ADP + H(+) + phosphate Homohexamer. Interacts with TOR1A; the interaction may be specific of neural tissues. Interacts with TOR1AIP1; TOR1AIP1 is required for TOR1B location on the nuclear membrane. Interacts (ATP-bound) with TOR1AIP2; important for endoplasmic reticulum integrity. Widely expressed with low levels in brain. N-glycosylated. Belongs to the ClpA/ClpB family. Torsin subfamily.