The amount of a ganglioside-induced differentiation-associated protein 1-like 1 when measured in blood serum. The trait is Ontology of Biological Attributes entry OBA_2041696 (level of ganglioside-induced differentiation-associated protein 1-like 1 in blood serum). Also known as: blood serum ganglioside-induced differentiation-associated protein 1-like 1 amount.