Splicing factor that in its dephosphorylated form acts as a general repressor of pre-mRNA splicing. Seems to interfere with the U1 snRNP 5'-splice recognition of SNRNP70. Required for splicing repression in M-phase cells and after heat shock. Also acts as a splicing factor that specifically promotes exon skipping during alternative splicing. Interaction with YTHDC1, a RNA-binding protein that recognizes and binds N6-methyladenosine (m6A)-containing RNAs, prevents SRSF10 from binding to its mRNA-binding sites close to m6A-containing regions, leading to inhibit exon skipping during alternative splicing (By similarity). May be involved in regulation of alternative splicing in neurons (PubMed:10583508). The phosphorylated but not the dephosphorylated form interacts with TRA2B/SFRS10. The dephosphorylated form interacts with SNRNP70. Interacts with FUS C-terminus. Interacts with YTHDC1, leading to inhibit RNA-binding activity of SRSF10. Widely expressed, with high levels in brain and testis. Phosphorylated. Fully dephosphorylated in mitosis and partially dephosphorylated on heat shock. Belongs to the splicing factor SR family.