level of beta-1,3-N-acetylglucosaminyltransferase manic fringe in blood serum (Ontology of Biological Attributes id OBA_2042354) is the amount of a beta-1,3-N-acetylglucosaminyltransferase manic fringe when measured in blood serum. Also known as: blood serum beta-1,3-N-acetylglucosaminyltransferase manic fringe amount.