The function of ENSG00000119979 (DENND10, DENN domain containing 10) is as follows. Guanine nucleotide exchange factor (GEF) regulating homeostasis of late endocytic pathway, including endosomal positioning, maturation and secretion, possibly through activating Rab proteins such as RAB27A and RAB27B (PubMed:38459129). Promotes the exchange of GDP to GTP, converting inactive GDP-bound RAB27A and RAB27B into their active GTP-bound form (PubMed:30771381, PubMed:38459129). .