MT-ND3 (Mitochondrially Encoded NADH:Ubiquinone Oxidoreductase Core Subunit 3) is a Protein Coding gene. Diseases associated with MT-ND3 include Leigh Syndrome and Leber Optic Atrophy. Among its related pathways are Metabolism and Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.