Veterans Mental Health Care Capacity Enhancement Act of 2005

Veterans Mental Health Care Capacity Enhancement Act of 2005 - Requires the Under Secretary for Health for the Veterans Health Administration of the Department of Veterans Affairs to include as goals in performance contracts for prioritizing mental health services to veterans: (1) establishing appropriate staff-patient ratio levels; (2) fostering collaborative environments for providers; and (3) encouraging clinicians to conduct mental health consultations during primary care visits.

Directs the Secretary of Veterans Affairs to ensure that not less than 90 percent of Department community-based outpatient clinics have the capacity to provide on-site, contract-referral, or tele-mental health services for at least: (1) ten percent of all clinic visits by no later than September 30, 2006; and (2) 15 percent of all clinic visits by no later than September 30, 2007.

Directs the Secretaries of Defense and Veterans Affairs to enter into a memorandum of understanding to ensure interdepartmental cooperation on mental health awareness and mental illness prevention.

Requires the Under Secretary to establish system-wide guidelines for screening primary care patients for mental health disorders and illnesses.