This domain is found at the N-terminal end of Glyoxalase domain- containing protein 4 from humans (GLOD4) and similar proteins from vertebrates. This protein seem to be involved in metabolic detoxification [1]. The specific function of this domain is still unknown.

1: Methionine-induced hyperhomocysteinemia and bleomycin hydrolase deficiency alter the expression of mouse kidney proteins involved in renal disease. Suszynska-Zajczyk J, Utyro O, Jakubowski H; Mol Genet Metab. 2014;112:339-346. PMID:24913063