Probable transcription factor (PubMed:18794349). Binds to the DNA sequence motif 5'-[AG]GGCGCCG-3' in the promoters of target genes, including micro-RNA genes, in order to repress expression, and acting redundantly with flh-2 (PubMed:18794349). Expressed during embryogenesis and adulthood (at protein level) (PubMed:18794349). Expressed in most cells starting at gastrulation and diminishing by the L1 larval stage; however, also expressed in L4 larval stage and adults (PubMed:18794349). Knockout, in a flh-2 mutant background, causes poor coordination, egg-laying defects and dumpy appearance (PubMed:18794349). Causes a ninefold to 10-fold decrease in lin-14 level in embryos and about 2-fold increase in the levels of micro-RNAs lin-4 and mir-241 (PubMed:18794349). Despite the increase in lin-4 expression, post-embryonic heterochronic defects are not observed (PubMed:18794349). RNAi-mediated knockdown causes precocious embryonic expression of micro-RNA lin-4, exacerbated by simultaneous RNAi-mediated knockdown of flh-2 (PubMed:18794349).