Queried GO term:

  idGO:0016675   Detailed information
  nameoxidoreductase activity, acting on a heme group of donors
  namespacemolecular_function
  def"Catalysis of an oxidation-reduction (redox) reaction in which a heme group acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor." [GOC:ai]
  commentNote that enzymes of class EC:1.9.99.- should also be annotated to this term.
  subsetgosubset_prok
  is_aGO:0016491 ! oxidoreductase activity

No monarch genes has the input GO term: GO:0016675.