The function of ENSG00000235268 (KDM4E, lysine demethylase 4E) is as follows. Histone demethylase that demethylates trimethylated 'Lys-9' of histone H3 into monomethylated form, thereby playing a central role in histone code (PubMed:21914792, PubMed:23451023). Also demethylates trimethylated 'Lys-56' of histone H3 (H3K9me3) to generate the monomethylated state (H3K56me1) (PubMed:23451023). .