This gene is one of the contiguous genes at 7q11.23 commonly deleted in Williams syndrome, a multisystem developmental disorder. This gene consists of at least 14 exons, and its alternative splicing generates 3 transcript variants, all encoding the same protein. [provided by RefSeq, Jul 2008]
Enables several functions, including neutral L-amino acid transmembrane transporter activity; protein heterodimerization activity; and secondary active transmembrane transporter activity. Involved in L-alanine import across plasma membrane; L-leucine import across plasma membrane; and thyroid hormon
Enables L-lysine:L-arginine antiporter activity and arginine binding activity. Involved in L-arginine transmembrane transport; L-leucine transport; and ornithine transport. Predicted to be located in plasma membrane. [provided by Alliance of Genome Resources, Jul 2025]