Enables chloride channel regulator activity. Involved in chloride transport. Predicted to be part of protein-containing complex. Predicted to be active in basolateral plasma membrane. Predicted to be integral component of plasma membrane. Human ortholog(s) of this gene implicated in Bartter disease; Bartter disease type 4a; and sensorineural hearing loss. Orthologous to human BSND (barttin CLCNK type accessory subunit beta). [provided by Alliance of Genome Resources, Apr 2022]