label: alpha-N-acetylgalactosaminidase deficiency type 3
label_lc: alpha-n-acetylgalactosaminidase deficiency type 3
description: Alpha-N-acetylgalactosaminidase (NAGA) deficiency type 3 is a rare clinically heterogeneous type of NAGA deficiency with developmental, neurologic and psychiatric manifestations presenting at an intermediate age.