This family of proteins has a role in embryogenesis. During embryogenesis it is essential for ectoderm and axial mesoderm development [1]. It may regulate cell proliferation and apoptosis [2].

1: Isolation and characterization of a novel Xenopus gene (xVAP019) encoding a DUF1208 domain containing protein. Ruan XZ, Yang HS, Yao SH, Ma FX, Zhao XY, Yan F, Wang CT, Lai ST, Deng HX, Wei YQ; Mol Reprod Dev. 2007;74:1505-1513. PMID:17440976

2: Identification and characterization of two novel variants of the DUF1208 protein FAM92A1. Ruan XZ, Yan F, Zhao XY, Wang CT, Song M, Yang HS, Deng HX, Wei YQ; Mol Cells. 2007;23:391-397. PMID:17646714