The domain within your query sequence starts at position 784 and ends at position 885; the E-value for the RPT_1 domain shown below is 7.28e-5.

PLTKSSSKREHRRSVDSRNTLNDLLKHLNDPNSNPKAILGEIHMAHQTLMLDPVGPMAEV
PPKVPNREASLYSPPSTLPRNSPTKRVDVPTTPGVPMTSLER

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