The domain within your query sequence starts at position 2010 and ends at position 2138; the E-value for the RPT_3 domain shown below is 3.53e-6.

GETFADHRENILKTAKALVEDTKLLVSGAASTPDKLAQAAQSSAATITQLAEVVKLGAAS
LGSNDPETQVVLINAIKDVAKALSDLIGATKGAASKPADDPSMYQLKGAAKVMVTNVTSL
LKTVKAVED

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