Claim: Ammonia:ferredoxin oxidoreductase participates in nitrogen metabolism and nitrogen assimilation (the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment), and has 3 cofactors, namely, iron, Siroheme, and Iron-sulfur.
Evidence: This enzyme participates in nitrogen metabolism and nitrogen assimilation. It has 3 cofactors: iron, Siroheme, and Iron-sulfur. Nitrogen assimilation is the formation of organic nitrogen compounds like amino acids from inorganic nitrogen compounds present in the environment. The systematic name of this enzyme class is ammonia:ferredoxin oxidoreductase.