Transcriptional activator (PubMed:26019275). C/EBP are DNA- binding proteins that recognize two different motifs: the CCAAT homology common to many promoters and the enhanced core homology common to many enhancers. Required for the promyelocyte-myelocyte transition in myeloid differentiation (PubMed:10359588). . This is the function of CEBPE (CCAAT enhancer binding protein epsilon, Ensembl gene identifier ENSG00000092067).