Component of the little elongation complex (LEC), a complex required to regulate small nuclear RNA (snRNA) gene transcription by RNA polymerase II and III. Acts as a transcriptional repressor of the GATA3 promoter. Induces thymocyte apoptosis when overexpressed, which may indicate a role in regulation of thymocyte homeostasis (By similarity). Sequence-specific DNA-binding factor that binds to the 5'-AGGTCTC-3' sequence within the negative cis-acting element intronic regulatory region (IRR) of the GATA3 gene. Component of the little elongation complex (LEC), at least composed of ELL (ELL, ELL2 or ELL3), ZC3H8, ICE1 and ICE2. Interacts with ICE1 (via C-terminus domain) (By similarity). Colocalizes with coilin in subnuclear cajal and histone locus bodies. Translocates in the LEC complex to cajal and histone locus bodies at snRNA genes in a ICE1-dependent manner. Associates to transcriptionally active chromatin at snRNA genes (By similarity). Highly expressed in heart, muscle, testis, kidney, brain, liver, lung and spleen. The N-terminal region and all three C3H1-type zinc fingers are necessary to induce transcriptional repression.