ganglioside metabolic process ganglioside catabolic process GO:0006689 ganglioside degradation ganglioside catabolism ganglioside breakdown The chemical reactions and pathways resulting in the breakdown of ganglioside, a ceramide oligosaccharide carrying, in addition to other sugar residues, one or more sialic residues. biological_process glycosphingolipid catabolic process ceramide catabolic process