This family of proteins has some GO annotations for positive regulation of growth rate and nematode larval development. This is probably a family of membrane glycoproteins [1].

1: Proteomics reveals N-linked glycoprotein diversity in Caenorhabditis elegans and suggests an atypical translocation mechanism for integral membrane proteins. Kaji H, Kamiie J, Kawakami H, Kido K, Yamauchi Y, Shinkawa T, Taoka M, Takahashi N, Isobe T; Mol Cell Proteomics. 2007;6:2100-2109. PMID:17761667