Sodium- and chloride-dependent glycine transporter (PubMed:8183239). Essential for regulating glycine concentrations at inhibitory glycinergic synapses. Sodium- and chloride-dependent glycine transporter. Sodium- and chloride-dependent glycine transporter. chloride(out) + glycine(out) + 2 Na(+)(out) = chloride(in) + glycine(in) + 2 Na(+)(in) chloride(out) + glycine(out) + 2 Na(+)(out) = chloride(in) + glycine(in) + 2 Na(+)(in) Inhibited by sarcosine. Inhibited by sarcosine. Interacts with EXOC1; interaction increases the transporter capacity of SLC6A9 probably by promoting its insertion into the cell membrane (By similarity). Interacts with EXOC3 and EXOC4 (By similarity). Expressed in the brain, kidney, pancreas, lung, placenta and liver. Expressed in the brain, kidney, pancreas, lung, placenta and liver. Expressed only in the brain. The disease is caused by variants affecting the gene represented in this entry. Belongs to the sodium:neurotransmitter symporter (SNF) (TC 2.A.22) family. SLC6A9 subfamily.