While the HGNC only assign nomenclature to human genes, by convention vertebrate orthologs of these genes adopt the same nomenclature (e.g., VGNC-assigned orthologs of SLC10A1).
The Human Gene Nomenclature Committee (HGNC) designates names for human genes, and by convention, the corresponding genes in vertebrates adopt the same nomenclature (e.g., if a gene is named SLC10A1 by the HGNC, its vertebrate ortholog will also be named SLC10A1).