This gene encodes N-acetylgalactosamine-6-sulfatase which is a lysosomal exohydrolase required for the degradation of the glycosaminoglycans, keratan sulfate, and chondroitin 6-sulfate. Sequence alterations including point, missense and nonsense mutations, as well as those that affect splicing, result in a deficiency of this enzyme. Deficiencies of this enzyme lead to Morquio A syndrome, a lysosomal storage disorder. [provided by RefSeq].Synonyms: Chondroitinase, Chondroitinsulfatase, EC=3.1.6.4, GalNAc6S sulfatase, Galactose-6-sulfate sulfatase, N-acetylgalactosamine-6-sulfatase, N-acetylgalactosamine-6-sulfate sulfatase