The domain within your query sequence starts at position 1266 and ends at position 1354; the E-value for the RPT_1 domain shown below is 6.7e-11.

PSTSTEQPDTREPSSQARTRRSAVKTPEASVPTTPELQPFTSKKQPAPKPTALVTQGRTY
KPSTEDCESVGPVAPDFEPSTSTDHLVTP

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.