Mediates sodium- and chloride-dependent transport of taurine (PubMed:31345061, PubMed:31903486, PubMed:8010975, PubMed:8382624, PubMed:8654117). Mediates transport of beta-alanine (PubMed:8010975). Can also mediate transport of hypotaurine and gamma-aminobutyric acid (GABA) (By similarity). ; Sodium-dependent taurine and beta-alanine transporter. Chloride ions are necessary for optimal uptake.