Plays a role in modulating RNAi activity and P-granule accumulation in the germline (PubMed:28182654). May function in association with CSR-1 complex components such as drh-3 to regulate RNA transcript accumulation in germ cells (PubMed:28182654). Mainly localizes to the rachis, which is the central core of the cytoplasm connecting developing oocytes in the syncytial gonad (PubMed:28182654). Within the rachis, partially co-localizes with the P-body component cgh-1 (PubMed:28182654). Localizes to foci next to P-granules, but does not co-localize with P-granules (PubMed:28182654). Highly expressed in the germline. First expressed in primordial germ cells between the comma to 2-fold stage of embryogenesis. RNAi-mediated knockdown results in embryonic lethality in 5-8% of animals (PubMed:28182654). Surviving animals have enlarged P-granules in the germline (PubMed:28182654).