Sandbox

SELECT 
  * 
FROM 
  cscart_bm_locations as l 
  LEFT JOIN cscart_bm_locations_descriptions as d ON d.location_id = l.location_id 
  AND d.lang_code = 'en' 
WHERE 
  l.layout_id = 1 
  AND l.dispatch IN ('gift_certificates.add') 
ORDER BY 
  l.object_ids desc 
LIMIT 
  1

Query time 0.00013

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	l	ALL					15	Using where; Using filesort
1	SIMPLE	d	eq_ref	PRIMARY	PRIMARY	10	cscart_dev_4_16.l.location_id,const	1	Using where