Chromatin reader component of the transcription regulatory histone acetylation (HAT) complex SAGA (By similarity). Involved in salt stress tolerance. Enhances the effect of ADA2B in the positive regulation of salt-induced gene expression (PubMed:21193996). Expressed in roots, rosette leaves, cauline leaves, stems and flowers. The SGF29 tudor-like domain mediates binding to methylated 'Lys-4' of histone H3 (H3K4me). Delayed flowering. Increased tolerance to salt stress. Belongs to the SGF29 family.