該基因編碼一種降解糖胺聚糖的水解酶，包括硫酸乙酰肝素、硫酸皮膚素和硫酸軟骨素。這種酶形成一個定位于溶酶體的四聚體該基因突變導致粘多糖病第七型。選擇性剪接導致多個轉錄變體人類基因組中有許多這個位點的假基因。[由RefSeq提供，2014年5月]
This gene encodes a hydrolase that degrades glycosaminoglycans, including heparan sulfate, dermatan sulfate, and chondroitin-4,6-sulfate. The enzyme forms a homotetramer that is localized to the lysosome. Mutations in this gene result in mucopolysaccharidosis type VII. Alternative splicing results in multiple transcript variants. There are many pseudogenes of this locus in the human genome.[provided by RefSeq, May 2014]