To use a thermistor to measure temperature, you would normally use a resistor of about the same value as the thermistor itself. In this case that would be 5 ohms. With a total resistance of only around 10 ohms, about 0.5A would flow. You would need an external PSU because usb could not provide this and power an Arduino. It would also be very wasteful of power and forget using this in a battery circuit. The high current would also cause heating in the thermistor, causing an incorrect reading. This is why, as mentioned above, this type of thermistor is not used to measure temperature.
If you want to measure temperature, get a ds18b20. Much easier to use.