The domain within your query sequence starts at position 332 and ends at position 410; the E-value for the RPT_1 domain shown below is 4.61e-10.

PPPGCGKSKSKLKPEQDGISKTHKLLRRTCSSTVKADDMCAKSHRTFGRSLSSDPRAEQA
MSTIKSHKLLGRPCPSAGK

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