Queried GO term:

  idGO:0006684   Detailed information
  namesphingomyelin metabolic process
  namespacebiological_process
  def"The chemical reactions and pathways involving sphingomyelin, N-acyl-4-sphingenyl-1-O-phosphorylcholine, any of a class of phospholipids in which the amino group of sphingosine is in amide linkage with one of several fatty acids, while the terminal hydroxyl group of sphingosine is esterified to phosphorylcholine." [ISBN:0198506732]
  subsetgosubset_prok
  is_aGO:0006644 ! phospholipid metabolic process
  is_aGO:0006665 ! sphingolipid metabolic process

No monarch genes has the input GO term: GO:0006684.