The domain within your query sequence starts at position 79 and ends at position 151; the E-value for the RPT_1 domain shown below is 3.46e-38.

APEDSTSTAVLSGTSSPATTAPVNSASSPVAHGDTSSPATSLSKDSNSSPVVHSGTSSAP
ATTAPVDSTSSPV

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