preferred_name: N-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-ethanolamine + reduced [NADPH--hemoprotein reductase] + O2 <=> N-(20-hydroxy-5Z,8Z,11Z,14Z-eicosatetraenoyl)-ethanolamine + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)