Sodium- and chloride-dependent glycine transporter (PubMed:10381548, PubMed:10606742, PubMed:16751771, PubMed:31370103, PubMed:9845349). Terminates the action of glycine by its high affinity sodium-dependent reuptake into presynaptic terminals (PubMed:9845349). May be responsible for the termination of neurotransmission at strychnine-sensitive glycinergic synapses (PubMed:9845349). {ECO:0000269|PubMed:10381548, ECO:0000269|PubMed:10606742, ECO:0000269|PubMed:16751771, ECO:0000269|PubMed:31370103, ECO:0000269|PubMed:40725001, ECO:0000269|PubMed:9845349}. [Isoform 2]: Lacks sodium- and chloride-dependent glycine transporter activity. . [Isoform 3]: Lacks sodium- and chloride-dependent glycine transporter activity. . This is the function of SLC6A5 (solute carrier family 6 member 5, Ensembl gene identifier ENSG00000165970).