The function of ENSG00000164334 (FAM170A, family with sequence similarity 170 member A) is as follows. Acts as a nuclear transcription factor that positively regulates the expression of heat shock genes (PubMed:20162441). Binds to heat shock promoter elements (HSE) (PubMed:20162441). Necessary for normal sperm head morphology, efficient spermiation, and sperm progressive motility (By similarity). Plays a crucial role in sperm chromatin remodeling by promoting the nuclear translocation and deubiquitinating activity of USP7 on histone H2A and H2B variants (By similarity). This ensures the timely removal of core histones, proper expression and degradation of transition proteins, and efficient incorporation of protamines during spermiogenesis (By similarity). .