Catalysis of the hydrolysis of hexosaminic linkages in chondroitin, a linear polymer structure composed of the repeating disaccharide unit [->4)-D-glucuronic acid-(1->3)-N-acetyl-D-galactosamine-(1-], also written as [->4GlcUA1->3GalNAc1-].
Source:
GOC:mengo_curators,
PMID:18390555