RNA-binding protein that promotes oogenesis by repressing fem-3 expression during germline development (PubMed:18515547, PubMed:20663921). Binds poly-U and poly-G stretches of RNA in vitro (PubMed:18515547). Regulates target RNAs expression either by regulating their stability or translation (PubMed:20663921). Oogenesis defects similar to defects due to hyperactive Ras-MAPK signaling. Increased mRNA levels of several components of the MAPK-signaling pathway.