The domain within your query sequence starts at position 597 and ends at position 713; the E-value for the RPT_2 domain shown below is 4.87e-8.

ESEPVAAEDTGGKENPGMKADEVDVLAQAGLTGTVIRNMEAIGVRDTGIQATGLEAKAVK
TTGVQATVAEVIGVKVTGVQTTAIEAIGVKDTTQVATGAQADCWQATEADCTGAQDT

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