Probable chloride channel. Can be translocated to membranes, possibly as integral membrane proteins, with chloride channel activity (By similarity). Localizes to lysosomal membranes in the intestine, and to Golgi apparatus in neurons and muscle. It also localizes to dense bodies, a transmembrane structure which links the muscle cytoskeleton to the neighboring hypodermis. Expressed in the intestine, neurons and muscles. Members of this family may change from a globular, soluble state to a state where the N-terminal domain is inserted into the membrane and functions as chloride channel. A conformation change of the N-terminal domain is thought to expose hydrophobic surfaces that trigger membrane insertion (By similarity). Belongs to the chloride channel CLIC family.